1. J. Kiehl, K. Emery and A. Andreas, Proc. 19th European PVSEC, 2463–2465, (2004).
2. V.D. Rumyantsev, V.M. Andreev, V.R. Larionov, D.A. Malevskiy and M.Z. Shvarts in Proc. of the Fourth Int. Conf. on Solar Concentrators for the Generation of Electricity or Hydrogen, 2007, pp. 277–280.
3. D. Jungwirth, et.al., Proc. of the 33rd IEEE PVSC, San Diego, CA, USA, 2008, pp. 1–6.
4. M.Schachtner, et.al., Proc. of the 26th EUPVSEC, 2011, pp. 199–204.
5. Analysis of a four lamp flash system for calibrating multi-junction solar cells under concentrated light